Under Armour Hustle 4.0 Backpack vs Under Armour Flex Sling Bag

The main difference between the Under Armour Hustle 4.0 Backpack and the Under Armour Flex Sling Bag is that the Hustle 4.0 Backpack has Water Proof / Water Resistant (UA Storm technology highly water-resistant finish) while the Flex Sling Bag does not.

Under Armour Hustle 4.0 Backpack Front View
Under Armour Flex Sling Bag Front View
Specs Brand Under Armour Under Armour
Name Hustle 4.0 Backpack Flex Sling Bag
Category Sports Sling
Sub Category Gym Mens
Capacity (L) 26L 15L
Dimensions (in) 5.9 x 13 x 19.3 10.9 x 4.3 x 17.3
Weight (lb) 1.3 0.7
Fabric 100% Polyester 100% Polyester
Color 40+ colors and patterns 2 colors and patterns
Warranty Under Armour 60 Days Return Policy Under Armour 60 Days Return Policy
Release Date May 31, 2019
Rating 4.8 4.2
Price Under $75 Under $50
General Features Shoulder Straps Adjustable HeatGearĀ® curved padded shoulder straps Adjustable cross-body strap
Water Proof / Water Resistant UA Storm technology highly water-resistant finish
Zippers Rugged zippers
Main Compartment Access Normal zipped access Top access with cinch closure
External Pockets 1 zipped front pocket, 1 bottom pocket, and 2 side pockets 1 front and 2 side pockets
Internal Compartments Dual main compartment with inner pockets
Side Pockets Side pockets can fit water bottle Side pockets can fit water bottle
Water Bottle Yes Yes
Handles Padded top grab handle
Loops and Attachments D-ring on front panel
Lightweight Yes
Business & School Features Laptop Sleeve Soft-lined padded sleeve holds up to 15" laptop
Organizer Pocket Front utility pocket with organizer
Travel Features Base / Bottom Tough, abrasion-resistant bottom panel
Gym / Sports Features Shoe Compartment Gusseted laundry or shoe bottom pocket Stretch shoe pocket on front panel with buckle closure fits pair of shoes

You're currently comparing the Hustle 4.0 Backpack by Under Armour against the Flex Sling Bag by Under Armour .


Under Armour 's Hustle 4.0 Backpack is a Sports backpack with Gym features while Under Armour 's Flex Sling Bag is a Sling backpack with Mens features.

The Under Armour Hustle 4.0 Backpack has a capacity of 26L (liters), weighs 1.3 pounds and it's dimensions in inches are 5.9 x 13 x 19.3. It's made of 100% Polyester and is available in 40+ colors and patterns in comparison the Under Armour Flex Sling Bag's capacity is 15L with a size of 10.9 x 4.3 x 17.3 inches. Constructed from 100% Polyester it weighs 0.7 pounds and is available in 2 colors and patterns.